RearSprocketSelectionAccordingtoCourseConditionsFastCourseManyCurvesorHillsSandyorSoftGround•Ifthecoursehaslongstraightportions,thesec-ondaryreductionratioshouldbereducedsothatthemachinespeedcanbeincreased.•Ifthenthecoursehasmanycornersoruphillsoriswet,thesecondaryreductionratioshouldbeincreasedsothatgearshiftingandaccelerationaresmooth.•Sincethespeedmustbechangeddependingonthegroundconditiononthedayoftherace,besuretorunthroughthecircuitpriortoaraceandtunethemachineaccordingly.•Ifthereisalongstraightportionofthecourseonwhichthemachinecanberunatmaximumspeed,themachineshouldbesetsothatthemaximumspeedisdevelopedtowardtheendofthestraightcourse,butcareshouldbetakennottoover-revtheengine.SmallsprocketLargesprocketTUNING199•Sinceitisdifficulttosetthemachinesoitisbestsuitedforallportionsofthecircuit,determinewhichcircuitportionswillhavethegreatestef-fectonlaptime,andtunethemachinetotheseportions.Confirmyoursettingsbyrecordinglaptimesaftereachchange.Inthiswaythemachinewilldeliverbestperformancefortheentirecircuit.SelectionoftheSecondaryReductionRatio(RearSprocket)Gearingj
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